package com.lzh.java;

/**
 * @author liuzhihao
 * @create 2021-02-18 13:30
 */

/**
 * 使用enum关键字定义枚举类
 * 说明：定义的枚举类默认继承于java.lang.Enum类
 *
 */
public class SeasonTest1 {
    public static void main(String[] args) {

        Season1 spring = Season1.SPRING;
        //toString():
        System.out.println(spring.toString());
        System.out.println(Season1.class.getSuperclass());
        System.out.println("**********************************");
        //values():
        Season1[] values = Season1.values();
        for(int i = 0;i< values.length;i++){
            System.out.println(values[i]);
            values[i].show();
        }

        Thread.State[] states = Thread.State.values();
        for(int i = 0;i<states.length;i++){
            System.out.println(states[i]);
        }
        System.out.println("***************************");
        //valueOf(String objName):返回枚举类中对象名是objName的对象。
        Season1 winter = Season1.valueOf("WINTER");
        //如果没有objName的枚举类对象，则抛异常：IllegalArgumentException
//        Season1 winter = Season1.valueOf("WINTER1");
        System.out.println(winter);
        winter.show();
    }
}

interface Info{
    void show();
}

//自定义枚举类
enum Season1 implements Info{

    //1.提供当前枚举类的对象，多个对象之间用“,”隔开，末尾对象“;”结束
    SPRING("春天","春暖花开"){
        @Override
        public void show() {
            System.out.println("春天在哪里");
        }
    },
    SUMMER("夏天","夏日炎炎"){
        @Override
        public void show() {
            System.out.println("宁夏");
        }
    },
    AUTUMN("秋天","秋高气爽"){
        @Override
        public void show() {
            System.out.println("秋天不回来");
        }
    },
    WINTER("冬天","冰天雪地"){
        @Override
        public void show() {
            System.out.println("大约在冬季");
        }
    };

    //1.声明Season对象的属性:private final修饰
    private final String seasonName;
    private final String seasonDesc;

    //2.私有化类的构造器,并给对象属性赋值
    private  Season1(String seasonName,String seasonDesc){
        this.seasonName = seasonName;
        this.seasonDesc = seasonDesc;
    }

    //4.其他诉求1：获取枚举类对象的属性
    public String getSeasonName() {
        return seasonName;
    }

    public String getSeasonDesc() {
        return seasonDesc;
    }

//    @Override
//    public void show() {
//        System.out.println("这是一个季节");
//    }
    //4.其他诉求2：提供toString()

//    @Override
//    public String toString() {
//        return "Season1{" +
//                "seasonName='" + seasonName + '\'' +
//                ", seasonDesc='" + seasonDesc + '\'' +
//                '}';
//    }

}